2ohms speaker on Pioneer headunit
12-04-2011, 12:35 PM
#1
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2ohms speaker on Pioneer headunit
Hello! I bought an AVH-P4300DVD HU this summer and have not changed my speakers yet. I was reading the owner's manual (searching for another thing) and it is written "Do NOT connect any 1-3 ohms speakers to this unit"... Exactly what I did... Is there a risk for the unit? Or just for the speakers? I don't mind about the speakers as I am about to swap them for Pioneer D-series component speakers, but I don't want to break my HU :O Thanks
12-04-2011, 01:15 PM
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I'm about to change the speakers in like max 1 month... Then I'll buy an amp 
But I just wanna be sure I won't break my headunit until I get those speakers!
But I just wanna be sure I won't break my headunit until I get those speakers!
12-04-2011, 01:35 PM
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Actually, if you put a 4 ohm speaker load on a 2 ohm amp/HU, your going to cause a lot of havoc on your amp/HU. If your impeadence doesn't match, its going to cause a major power drain, your amp/HU will overheat, and will eventually fail. If you MUST use the amp/HU you have installed now, then the best solution would be to run a second set of speakers in series, if possible. If you daisy chain two 4 ohm speakers, it will drop the load to 2 ohms. In order to do this, you would run your speaker wire from your amp/HU to the first speaker, and then run a second line from the first speaker to the second speaker.
I would think,
Here is a link for you to check out.
http://www.installdr.com/TechDocs/999016.pdf
"quote from that links"
Pros and Cons of Parallel wiring:
Parallel circuits are the simplest electrical circuit to wire. As can be seen in the diagrams below, adding additional speakers is
as easy as connecting all the speakers (+) positive leads to the (+) positive speaker output from the amp, and the (-) negative
leads the (-) negative speaker output from the amp.
However, adding speakers in parallel causes the overall resistance of the circuit to drop, an drop very fast. This is VERY
critical to understand. Automotive audio systems are designed around speakers with a 4 ohm resistance. But, many
amplifiers are only designed to operate while powering resistance loads of 4 ohms. Some amps are able to handle resistance
loads down to 2 ohms, but these amps must be designed to handle the increase in current draw of a speaker circuit at 2 ohms.
Why is this so important to understand? Adding speakers causes the overall resistance to drop. As resistance drops, the
current must increase according to Ohms Law. So, each time a speaker with the same resistance is added to the parallel circuit,
the current draw on the amp increases. The circuitry of the amp must be able to handle this increase in current at the reduced
resistance. This increase in current draw is also felt by the electrical system of the vehicle. The alternator may not be able to
produce the additional current required by the amp. This can be seen by headlights and dash lights that dim as peak current
draw is required by the amp
This is ownedbyagirls boyfriend.
I would think,
Here is a link for you to check out.
http://www.installdr.com/TechDocs/999016.pdf
"quote from that links"
Pros and Cons of Parallel wiring:
Parallel circuits are the simplest electrical circuit to wire. As can be seen in the diagrams below, adding additional speakers is
as easy as connecting all the speakers (+) positive leads to the (+) positive speaker output from the amp, and the (-) negative
leads the (-) negative speaker output from the amp.
However, adding speakers in parallel causes the overall resistance of the circuit to drop, an drop very fast. This is VERY
critical to understand. Automotive audio systems are designed around speakers with a 4 ohm resistance. But, many
amplifiers are only designed to operate while powering resistance loads of 4 ohms. Some amps are able to handle resistance
loads down to 2 ohms, but these amps must be designed to handle the increase in current draw of a speaker circuit at 2 ohms.
Why is this so important to understand? Adding speakers causes the overall resistance to drop. As resistance drops, the
current must increase according to Ohms Law. So, each time a speaker with the same resistance is added to the parallel circuit,
the current draw on the amp increases. The circuitry of the amp must be able to handle this increase in current at the reduced
resistance. This increase in current draw is also felt by the electrical system of the vehicle. The alternator may not be able to
produce the additional current required by the amp. This can be seen by headlights and dash lights that dim as peak current
draw is required by the amp
This is ownedbyagirls boyfriend.
12-04-2011, 01:45 PM
#6
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Speakers will be quiet, thats it.
Running 6x9 type Rs on my deck. Sounds geat and no distortion like the stock speakers.
I knew they would be quiet when I swapped them but its not bad at all.
Running 6x9 type Rs on my deck. Sounds geat and no distortion like the stock speakers.
I knew they would be quiet when I swapped them but its not bad at all.
12-04-2011, 02:00 PM
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12-04-2011, 02:09 PM
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12-04-2011, 09:51 PM
#15
well in that situation your HU sees no load because the pioneer setup has an amp. so ur good too as long as that amp stays in the equation. and our pioneer setup is very "bose" like in that its best to do all or none, you cant really just take out the amp on the stock speakers without causing issues. thats why i knew the op had nothing to worry about
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